Mahindra may be famous for its diesel engines but very soon there will be a range of high-tech and powerful new petrol engines under the new mStallion family. Turbocharged and with direct injection these new engines promise a mix of power, refinement and fuel economy, and will feature not just in new Mahindra cars, but in Ford and Ssangyong vehicles as well. We take a deep dive into the new mStallion family.